22 March 2011
On 31st march you deduct on prov and not on actual payment. So you have the time to get the correct details from the party. Say you are making prov for audit fees you can confirm the same from auditor by 30th april and deduct the TDS on 31st march date and deposit on 30th april which is due date of payment.
22 March 2011
yes, agreed you have given one month time to decided and rectify it if any rectification required, don't get confused its so simple as told by expert as above you have to just passed entry as provision and deduct as on. but afterthan if you found any mistake in calculation you may do the correction and deposit on or bf 30 april